Inheritance Nov.18th.2016

public class Student {
    public final static int NUM_TESTS = 3;
    private String name;
    private int[] tests;
    private String grade;
 
    public Student(){
        name="";
        tests=new int[NUM_TESTS];
        grade="";
    }
    public Student(String studName,int[]studTests,String studGrade){
        name=studName;
        tests=studTests;
        grade=studGrade;
    }
    public String getName(){
        return name;
    }
    public String getGrade(){
        return grade;
    }
    public void setGrade(String newGrade){
        grade=newGrade;
    }
    public void computeGrade(){
        if (name.equals("")){
            grade="No grade";
        }
        else if (getTestAverage()>=65){
            grade="Pass";
        }
        else{
            grade="fail";
        }
    }
    public double getTestAverage(){
        double total=0;
        for(int score:tests){
            total+=score;
        }
        return total/NUM_TESTS;
    }
}
 

 
public class UnderGrad extends Student{
 
    public UnderGrad()
    {super();}
 
    public UnderGrad(String studName,int[] studTests,String studGrade){
        super(studName,studTests,studGrade);}
 
    public void computeGrade(){
             if (getTestAverage()>=70)
                 setGrade("Pass");
             else{
                 setGrade("Fail");
             }
         }
    }
 
 

 
public class GradStudent extends Student {
    private int gradID;
    public GradStudent(){
        super();
        gradID=0;
    }
    public GradStudent(String studName,int[] studTests,String studGrade, int gradStudID){
        super(studName,studTests,studGrade);
        gradID=gradStudID;
    }
 
    public int getID(){
        return gradID;
    }
 
    public void computeGrad(){
        super.computeGrade();
        if (getTestAverage()>=90){
            setGrade("Pass with distinctoin");
        }
    }
}